Centrifugal pump



FIG. 1.1 is an upper front perspective view of a centrifugal pump showing my new design;

FIG. 1.2 is a rear perspective view thereof;

FIG. 1.3 is a front elevation view thereof;

FIG. 1.4 is a rear elevation view thereof;

FIG. 1.5 is a left side view thereof;

FIG. 1.6 is a right side view thereof;

FIG. 1.7 is a top view thereof; and,

FIG. 1.8 is a bottom view thereof.

The parts shown by means of broken lines in the drawings are not part of the claimed design. 

CLAIM The ornamental design for a centrifugal pump, as shown and described. 